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Posted: Sat May 23, 2009 3:40 pm
by Don_Hilton
Seeni,

I don't know the thermo software (yet - I'm starting to use a MAT 95, so that will change), but the GC/MS software I've encountered from tohter vendors allows you to set some kind of detection threshold - and changing that should allow for more or fewer peaks to be found. And, once you have found many peaks, there should be a way of selecting specific target compunds for reporting. So, you should be able to find many compunds in a mixture and then report relative concentrations for a selected list.

Again if you need TIC information and you do not have a way to get it out of your software, I know you can get it out of AMDIS. It has reporting and target analysis capabilities. Worst case it will get you almost all the way there and you take a list of peaks and deconvoluted areas to a spreadsheet to get relative percents.

You will have to do some exploring. But, it will get you to wonderful places you never dreamed of.

Good luck.

Don

Thak you so much

Posted: Mon May 25, 2009 11:17 am
by k.m.seenivasan
Dear Don,
Thanks a lot for your valuable input. I got it now. the thing is i have worked with standard concentration of 25 ppb. When i injected 1 ppm all peaks are there in the TIC. Thank you.

Regards

Seeni